Improvement in rotary harrows



4neet with the hinged journals, on which the rotary 'ulueliable To such hai-row-counections, I lay noclaim.

position, while the swivels turn and admit of such MYR-0N "e, CHAMPION, o F s TURG-Is,1\/IICHIGAN;

' Y Letters Patent No. 92,422, dated July 13, 1869.

IMPROVEMENT I N ROTARY HARRoWs,

The Schedule referred to in these Letters Patent and making part of the same.

To the heads B are connected swivel-pins, 0 to which pills the hounds or drag-bars D D are pivoted,

To all whom it may concer-n.-

Be it known that I, MYRON B. CHAMPION, of Sturgis, in the county of St.:Joseph, in the State otMichigan, have invented a new and useful Improvement in Rotary Drags; an .Ido hereby declare that the following is a full an( exact description thereof, referenoe,bcing had to the accompanying drawings, and to the letters of reference marked thereon.

Figure 1 represents, in perspective, the .harrow and its several connected "parts, in the positions they o'c-'- cupy when converted into a `truck to -czu'ry itself to and from the field.

Figure 2 represents the same parts, in the positions they .occupy when it is a rotary harrow, andu'eaduv to be worked inthe iield.,

Similar letters of reference, where they occur in the separate figures, denote like parts ot`- the machine in both.' oi'- thcdrawilngs. l

lI au) aware that several forms' of' 'rotary hal-rows,

that are convertible into a truckto transport themnot vertically to any extent.

The forward ends of the hounds or drag-bars D, after being pivoted at g to the cross-bar E, which is connected to the tongue F, terminate in hooks fi, or other devices used for the purpose, to which. the singleand by which the harrows are drawn. The drag or barrow-wheels O are furnished with a'. series of teeth,j, and have tires,- k, of a simple and cheap kind, put around them tol prevent wear, When used as carrying-wheels.'

The resistance, or (h'ag, as it is termed,` of rotating harrows, as they are drawn over the eld, is very great, and unless Ythe dr. T-bars are connected to the journal-heads directy -so as to draw upon them, and not simply carry them along by the hinged jointalone, they will not stand the resistance or strain. N or will p -'s`imple rods or links connected to the journal-heads and patented. But in their construction they have. `serve the purpose, as, in changing the wheels from a been so made, that the drag-bars either did not convertical to a horizontal position, the heads must change from a horizontal to a vertical position, and such links or rods must be loose enough to admit of this change, and ywhen loose enough for this swinging motion,then harrows.

It will be perceived, by my construction, that in loose as to give very little support to those parts, or else, when the wheels were turned down upon the,- ground to form h arrows, such drag-bars were twisted, or bent, clear out oi'l pluce,.maliing the drag or draught rice rcrsa, the rear ends ofthe hounds D swing round My invention consists in connecting the hounds or rigid bars, by which the drag and resistance of theV machine is taken, to a swivelling-pin in the journalhead, on which the barrow-wheels are placed and carried, so that as said journals, journal-heads, and wheels are turned down to form harrows, or up to form truckwheels, the hounds or drag-bars maintain a uniform turn over,`whilst their front ends have no perceptible mpvement. They are always then in the'direct line oi' draught between the team and the resistance, and have no shackle-motion, as li-nks, chains, or rodswould have, all of which must be taken up before the draught comes upon the journal-head, or is taken from the hinge-joint, which cannot, from its construction, resist s0 lnuch strain.

Having thus fully described my invention,

What I claim therein as new, and desire to secure by Letters Patent, is

In a hai-row that is convertible from a-trnck to a harrow, and rice tersa, the combi/nation of the hinged journal-heads B, carrying the harrw-wheels, the swivelpins e, andthe drag-bars D, so that in either of its conditions, of truck or barrow, the drag-bars will maintain a uniform position in the line of draught or resistance, as described and represen ted.

MYRON B. CHAMPION.

changes, and still leave the draught Ior drag-connections comparatively rigid antl strong.

To enable others skilled in the art to make and use my invention, I will proceed t describe `the 4same with lreference to the drawings.

A represents a cross-bar or axle, to which are hinged, at a a, journal-heads B B, to or on suitable journals, on which are placed the narrow-wheels O C, so that on being drawn over the ground, they will turn on said journals.

Beside the hinge a, andthe journals on these heads B, there is a slot or fork, c, that takes over a turningpin, d, in the axle, to hold them when swung down over said pin.

Witnesses:

IsAAo 1). TOLL, S. E. LESTER.

as at f, so as to move laterally on said pivots, but

trees G are fastened, and-to which the team is hitched, A

there is'too much playto take the resistance of the changing the machine from a truck to a harroW,-or-

a circle, ot' which a is the centre, but do not twist orv 

